1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Deffense [45]
3 years ago
6

In a recent survey, 64 % of the community favored building a police substation in their neighborhood. If 14 citizens are chosen,

find the probability that exactly 8 of them favor the building of the police substation.
Mathematics
1 answer:
kozerog [31]3 years ago
5 0

Answer: 0.1840

Step-by-step explanation:

The binomial probability formula :-

P(X)=^nC_x\ p^x(1-p)^{n-x}, here n is the number total of trials , p is the probability of getting success in each trial and P(x) is the probability of getting success in x trial.

Given : The probability of the community favored building a police substation in their neighborhood = 0.64

If 14 citizens are chosen, then the probability that exactly 8 of them favor the building of the police substation will be :-

P(8)={14}^C_{8}\ (0.64)^{8}(1-0.64)^{14-8}\\\\=\dfrac{14!}{8!6!}\times(0.64)^8(0.36)^{6}\\\\0.183996740126\approx0.1840

Hence, the probability that exactly 8 of them favor the building of the police substation = 0.1840

You might be interested in
Dan sells beaded necklaces. Each large necklace sells for $5.30 and each small necklace sells $3.90. How much will he earn from
ycow [4]
5.30 for 1 large and 19.50 for 5 smalls

5 0
3 years ago
Read 2 more answers
A rectangular prism has a volume of 840 cubic inches. The height of the prism is 6 inches and the width is 10 inches. Find the l
Yanka [14]
The volume of rectangular prism = length x height x width
so sub in the above equation we get
840 = length x 6 x 10
length = 840 /(60 x 10)
length = 14 inches
3 0
3 years ago
Read 2 more answers
Kendra earns $11.60 per hour working at the movie theater. Each week, she donates of
stich3 [128]

Answer:

$9.86

Step-by-step explanation:

First, write both numbers in the same form. Convert 8

1

2

to a decimal.

8

1

2

= 8+

1

2

= 8+

1×5

2×5

= 8+

5

10

= 8+0.5

= 8.5

Multiply.

11.6

× 8.5

580

+ 9280

98.60

Kendra earned $98.60 last week.

Now multiply to find how much money Kendra donated to the charity last week. She earned $98.60, and she donates  

1

10

of her earnings each week.

First, write both numbers in the same form. Convert  

1

10

to a decimal.

1

10

=0.1

Multiply.

98.6

× 0.1

9.86

Kendra donated $9.86 to the charity last week.

7 0
3 years ago
Ali will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of 70 and costs an additi
Aleksandr-060686 [28]

Answer: Ali would need to drive 350 miles for the two plans to cost the same.

Step-by-step explanation:

This question can be solved by creating two equations using the information supplied in the question and then solving these simultaneously.

Let the cost be C.

Let the number of miles be M.

Let the initial payment be i.

Let the rate per mile driven be R.

Plan 1:

C = i+R×M

C = 70+0.60M ... equation 1

Plan 2:

C = i+R×M

C = 0+0.80M

C = 0.80M ...equation 2

Substituting equation 2 into equation 1:

0.80M = 70+0.60M

0.80-0.60M = 70

0.20M = 70

M = 70/0.20

M = 350 miles

5 0
3 years ago
A village loses 20% of their goats to the flood and 5% die from diseases. There are 8084 goats left, how many goats were their o
bezimeni [28]

Answer:

10779

i think some error in this question

6 0
2 years ago
Other questions:
  • What is the difference between 4.507 and 4.517
    6·2 answers
  • Y + 2x = 5 I have to solve for Y please
    9·2 answers
  • Uwb-mcps-tgf<br>please join​
    13·2 answers
  • A store buys bicycles for $60 then marks up the price by 40% to sell them. Currently, the store is having a sale on bicycles for
    15·2 answers
  • Given quadrilateral ABCD≅quadrilateral EFGH, what is the value of x?
    9·2 answers
  • Which statement best describes g(x) = 3x + 6 - 8 and the parent function f(x) = } ?
    12·1 answer
  • Write short note on the rules on how to bisect a line​
    10·2 answers
  • Can you help me with this worksheet
    11·2 answers
  • Which correctly explains the number of solutions of the following system of linear
    5·1 answer
  • Joe would like to know the height of the new building. His distance from the building is 10 meters and joes own eye height is 1.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!